70573991 has 8 divisors (see below), whose sum is σ = 71713104. Its totient is φ = 69439680.

The previous prime is 70573967. The next prime is 70574003. The reversal of 70573991 is 19937507.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70573991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70573091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38600 + ... + 40386.

It is an arithmetic number, because the mean of its divisors is an integer number (8964138).

Almost surely, 2^70573991 is an apocalyptic number.

70573991 is a deficient number, since it is larger than the sum of its proper divisors (1139113).

70573991 is a wasteful number, since it uses less digits than its factorization.

70573991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2401.

The product of its (nonzero) digits is 59535, while the sum is 41.

The square root of 70573991 is about 8400.8327563403. The cubic root of 70573991 is about 413.2519319553.

The spelling of 70573991 in words is "seventy million, five hundred seventy-three thousand, nine hundred ninety-one".